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Pinholes in the metallic layer of a CD no longer contain music, Split from Topic ID #96812 (TOS #5)
Satellite_6
post Sep 4 2012, 02:37
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CD's!!!!!!!!!! Obviously the way to go.


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People are silly.
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jayess
post Sep 4 2012, 05:44
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QUOTE (Satellite_6 @ Sep 3 2012, 20:37) *
CD's!!!!!!!!!! Obviously the way to go.


You're absolutely correct, CD's are the way to go, but they aren't the perfect solution either. Most of my collection was bought used and I'm always shopping for new (used) stuff, but it's crazy to see how bad CD's deteriorate. That old stuff from the 80's and 90's, especially the discs with the chrome tops, hold them up to a light source and it's crazy to see how many of them have pinholes, which means there's no longer any music in that hole. And I'm talking about discs that in many cases don't have a scratch on them.
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mjb2006
post Sep 9 2012, 17:34
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OK, but if a particular disc/drive/ripper/rip-option combo has trouble with a disc that has only pinholes (no other dust or scratches), how do you know it was the pinholes? What makes a disc unreadable isn't necessarily visible to the eye, and isn't even necessarily indicative of a fault on the disc; different drives handle different types of defects better than others.

I have a CD here (made by Discovery Systems) that has no pinholes or scratches; it looks absolutely pristine, but has some kind of manufacturing defect (I can only assume) which make most of its tracks unreadable in any drive or player. If it somehow acquires some pinholes down the line, I'd obviously be mistaken if I attributed the disc's problems to them.

And as has been stated, pinhole-laden discs sometimes do rip without error. I have one like this, myself. So even without understanding the details of the CDDA format and its error-correction capabilities, it's clearly a mistake to assume that pinholes guarantee a disc contains "holes in the music" or that it won't rip and play 100% error-free.

If you have a choice between getting a disc with pinholes and getting one without, then surely, why take the risk with the pinholes? Nobody is saying otherwise. We're just saying you're wrong to assume pinholes guarantee problems.

This post has been edited by mjb2006: Sep 9 2012, 17:34
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jayess
post Sep 9 2012, 17:38
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QUOTE (mjb2006 @ Sep 9 2012, 11:34) *
OK, but if a particular disc/drive/ripper/rip-option combo has trouble with a disc that has only pinholes (no other dust or scratches), how do you know it was the pinholes? What makes a disc unreadable isn't necessarily visible to the eye, and isn't even necessarily indicative of a fault on the disc; different drives handle different types of defects better than others.

I have a CD here (made by Discovery Systems) that has no pinholes or scratches; it looks absolutely pristine, but has some kind of manufacturing defect (I can only assume) which make most of its tracks unreadable in any drive or player. If it somehow acquires some pinholes down the line, I'd obviously be mistaken if I attributed the disc's problems to them.

And as has been stated, pinhole-laden discs sometimes do rip without error. I have one like this, myself. So even without understanding the details of the CDDA format and its error-correction capabilities, it's clearly a mistake to assume that pinholes guarantee a disc contains "holes in the music" or that it won't rip and play 100% error-free.

If you have a choice between getting a disc with pinholes and getting one without, then surely, why take the risk with the pinholes? Nobody is saying otherwise. We're just saying you're wrong to assume pinholes guarantee problems.


A fair question at this point in regards to ripping accurately and without error is "to what degree?"

A disc with pinholes could give you a confidence of 5, but a truly perfect one would probably be much higher.

Both of these discs obviously have holes, but one is able to achieve a score of 4 and the other is a 1.
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